Satellite broadcast receiving and distribution system

ABSTRACT

The present invention provides a satellite broadcast receiving and distribution system that will permit for the transmission of vertical and horizontal or left-hand circular and right-hand circular polarization signals simultaneously via a single coaxial cable. The system of the present invention will accommodate two different polarity commands from two or more different sources at the same time. This satellite broadcast receiving and distribution system of the present invention will provide for the signals received from the satellite to be converted to standard frequencies so as to permit for signals to travel via existing wiring which the present day amplifiers can transport in buildings, high-rises, hospitals, and the like so that satellite broadcasting can be viewed by numerous individuals by way of a single satellite antenna.

This is a Continuation-In-Part of application Ser. No. 08/394,234, filedFeb. 22, 1995, now abandoned.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a satellite broadcastingreceiving and distribution system and more particularly to abroadcasting receiving and distribution system that will allow for thetransmission of vertical and horizontal or left-hand circular andright-hand circular polarization signals to be transmittedsimultaneously via a single coaxial cable.

2. Description of the Prior Art

Satellite broadcasting has become very popular throughout the UnitedStates. Conventionally, broadcast signals are transmitted through anartificial satellite at very high frequencies. These frequencies aregenerally amplified and are processed by a particular device afterreceived by an antenna or antennas and prior to application to aconventional home television set or the like.

Typically, broadcasting systems comprises an outdoor unit, generallyassociated with the antenna, and an indoor unit, generally associatedwith the television set, or the like. Both units, indoor and outdoor,are coupled via a coaxial cable.

A problem associated with these types of systems is that they aredesigned to accept signals through a line of sight. Accordingly, if thesatellite is not visual from a building, then the signal cannot betransmitted. Thus, these systems are rendered useless for high-rises,hospitals, schools, and the like. These systems are limited in usage,and, as such, can only be utilized in residential homes.

As an example, U.S. Pat. No. 5,301,352, issued to Nakagawa et al.discloses a satellite broadcast receiving system. The system of Nakagawaet al. includes a plurality of antennas which, respectively, include aplurality of output terminals. A change-over divider is connected to theplurality of antennas and includes a plurality of output terminals. Aplurality of receivers are attached to the change-over divider forselecting one of the antennas. Though this system does achieve one ofits objects by providing for a simplified satellite system, it does,however, suffer a major short-coming by not providing a means ofreceiving satellite broadcasting for individuals who are not in thedirect line of sight to the antennas. This system is silent to the meansof simultaneously transmitting vertical and horizontal polarized signalsvia a single coaxial cable.

U.S. Pat. No. 5,206,954, issued to Inoue et al. and U.S. Pat. No.4,509,198 issued to Nagatomi both disclose yet another satellite systemthat includes an outdoor unit that is connected to a channel selector.In this embodiment, the satellite signal receiving apparatus receivesvertically and horizontally polarized radiation signals at the side of areceiving antenna. The signals are then transmitted, selectively, toprovide for either one of the vertically or horizontally polarizedsignals to be transferred. Hence, utilizing a switch allow for only onepolarity to be transmitted. This design and configuration provides forone coaxial cable to be utilized, but does not provide for the verticaland horizontal signals to be transmitted simultaneously. This systemselectively transmits the desired signals and polarities.

Systems have been attempted for transferring two frequencies on the sameco-axial cable. Frequencies of the same polarity can easily betransmitted via a single co-axial cable, however, transmitting twosignals, from two sources, each of different polarities can be achallenge. In some satellite configuration systems, once a timingdiagram is plotted. For the signals to be transmitted, it is seen that aforbidden path occurs between frequencies of 950 MHz and 1070 MHz.Inherently prohibiting the frequencies within that range to betransmitted successfully. Hence, it is desirable to obtain a systemwhich will not allow for conversion to occur at frequencies of theforbidden conversion.

As seen in German Patent Number DE4126774-A1, signals can be fail withinthe range of the forbidden path, thereby, providing for a non-workingsystem. Additionally, this product, like the assembly disclosed inJapanese Application No. 63-293399 both disclose a system which receivesa single signal and demultiplexed them into vertical and horizontalpolarized signals. These systems, are complex and require a numerousamount of components in order to employ the invention. This increase incomponents will inherently cause an increase in component failure.Further, these systems fail to disclose a means of reconverting thesignals into their original frequency and polarity, a necessity forsatellite systems. Consequently, the system provides a signal which willnot maintain its respective polarity.

Accordingly, it is seen that none of these previous efforts provide thebenefits intended with the present invention, such as providing abroadcasting receiving and distribution system that will allow for thetransmission of vertical and horizontal or left-hand circular andright-hand circular polarization signals to be transmitted successfullyand simultaneously via a single coaxial cable. Additionally, priortechniques do not suggest the present inventive combination of componentelements as disclosed and claimed herein. The present invention achievesits intended purposes, objectives and advantages over the prior artdevice through a new, useful and unobvious combination of componentelements, which is simple to use, with the utilization of a minimumnumber of functioning parts, at a reasonable cost to manufacture,assemble, test and by employing only readily available material.

SUMMARY OF THE INVENTION

The present invention provides a satellite broadcast receiving anddistribution system that will permit for the transmission of verticaland horizontal or left-hand circular and right-hand circularpolarization signals simultaneously via a single coaxial cable. Thesystem of the present invention will accommodate two different polaritycommands from two or more different sources at the same time. Thissatellite broadcast receiving and distribution system of the presentinvention will provide for the signals received from the satellite to beconverted to standard frequencies so as to permit for signals to travelvia existing wiring which the present day amplifiers can transport inbuildings, high-rises, hospitals, and the like, so that satellitebroadcasting can be viewed by numerous individuals by way of a singlesatellite antenna.

The satellite broadcast system of the present invention comprises asatellite antenna which receives the polarized signals, a head-infrequency processor for converting the polarized signals, a singleco-axial cable for transmitting the converted signal, a head-outreceiver processor for re-converting the signals to their originalfrequency and polarity, and a source, which receives the signals intheir respective original frequency and polarity. Structurally, thehead-in frequency processor is coupled to the head-out receiverprocessor via the single co-axial cable. The source is coupled to thehead-out receiver processor.

Hence, to allow for successful conversion, the head-in processorconverts the received signals of two different polarities to frequencieswhich permit for transmission simultaneously. The head-in processor willalso accommodate two different polarity commands from two or moredifferent sources at the same time via the single cable.

The single cable couples the head-in processor to the head-outprocessor. Once in the head-out processor, the signals are re-convertedto their original state for transmission to the source (i.e.television).

Accordingly, it is the object of the present invention to provide for asatellite broadcast receiving and distribution system which willovercome the deficiencies, shortcomings, and drawbacks of priorsatellite broadcast systems and signals and polarity transfer methods.

It is another object of the present invention to provide for a satellitebroadcast receiving and distribution system that will convert differentfrequencies and different polarized signals in order to permit thesignals to be transmitted via a single coaxial cable.

Another object of the present invention is to provide for a satellitebroadcast receiving and distribution system that will provide service tomid/high-rise office buildings, condominiums, schools, hospitals and thelike via a single satellite.

Still another object of the present invention, to be specificallyenumerated herein, is to provide a satellite broadcast receiving anddistribution system in accordance with the preceding objects and whichwill conform to conventional forms of manufacture, be of simpleconstruction and easy to use so as to provide a system that would beeconomically feasible, long lasting and relatively trouble free inoperation.

Although there have been many inventions related to satellite broadcastreceiving and distribution systems, none of the inventions have becomesufficiently compact, low cost, and reliable enough to become commonlyused. The present invention meets the requirements of the simplifieddesign, compact size, low initial cost, low operating cost, ease ofinstallation and maintainability, and minimal amount of training tosuccessfully employ the invention.

The foregoing has outlined some of the more pertinent objects of theinvention. These objects should be construed to be merely illustrativeof some of the more prominent features and application of the intendedinvention. Many other beneficial results can be obtained by applying thedisclosed invention in a different manner or modifying the inventionwithin the scope of the disclosure. Accordingly, a fuller understandingof the invention may be had by referring to the detailed description ofthe preferred embodiments in addition to the scope of the inventiondefined by the claims taken in conjunction with the accompanyingdrawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram illustrating the components used for thesatellite broadcast receiving and distribution system according to thepresent invention.

FIG. 2 is a block diagram representing a first embodiment of the head-infrequency processor and two embodiments of the head-out frequencyprocessor used for the satellite broadcast receiving and distributionsystem according to the present invention.

FIG. 3a is a schematic diagram of the down converter used for thesatellite broadcast signal receiving and distribution system accordingto the present invention.

FIG. 3b is a schematic diagram of the up converter used for thesatellite broadcast signal receiving and distribution system accordingto the present invention.

FIG. 4 is a block diagram of the second embodiment of the satellitebroadcast signal receiving and distribution system according to thepresent invention.

FIG. 5 is a block diagram of the third embodiment of the satellitebroadcast signal receiving and distribution system according to thepresent invention.

Similar reference numerals refer to similar parts throughout the severalviews of the drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

As illustrated in FIG. 1, the satellite system 10 of the presentinvention includes a receiving satellite 12 that will transmit signals(Vertical-polarized signals and Horizontal-polarized signals orleft-hand circular and right-hand circular polarization signals) to ahead-in equipment frequency processor 14. It is at this head-inequipment frequency processor 14 where the signals are receivedsimultaneously and then transmitted via a single coaxial cable 16 to thehead-out receiver processor 18. This will enable for the single coaxialcable 16 to transmit signals of two different polarities and frequenciessimultaneously. From the head-out frequency processor the signals arereconverted to its original state and then transmitted to a source 20.As seen in FIG. 1, the two different polarities (Vertical-polarizedsignals and Horizontal-polarized signals or left-hand circular andright-hand circular polarization signals) are transported to the sourcevia separate cables 22a and 22b, respectively.

The system of the present invention includes separate embodiments, andthe first embodiment is illustrated in FIG. 2. As seen in the firstembodiment of the present invention 10a, there is shown a head-infrequency processor 14a couple to either a first head-out frequencyprocessor 18a or a second head-out frequency processor 18b.

It is noted that FIG. 2 illustrates the head-in processor 14a to becoupled to two separate head-out processors 18a and 18b, respectively.This is shown for illustrative purposes only. In actuality, only onehead-out receiver processor is utilized with the head-in processor 14a.The type and embodiment used for the head-out receiver processor isdependent to the combination of the satellite receiver and source thatis utilized.

As seen in FIG. 2, the head-in equipment frequency processor 14a willreceive two signals or two separate polarities and convert them toseparate frequencies for enabling transmission via a single coaxialcable 16a.

A low-noise block converter (LNB) 24 will receive the signals from thesatellite 12. This LNB 24 is conventional and is used for amplifying therespective polarized signals (Vertical-polarized signals andHorizontal-polarized signals or left-hand circular and right-handcircular polarization signals). Accordingly, after signals are received,they pass the low-noise block converter 24, to provide for the signalsto enter the head-in equipment frequency processor 14a (illustrated inFIG. 2 as dashed lines) via conduits 26a and 26b, respectively.

The head-in equipment frequency processor 14a, illustrated in FIG. 2,provides for the signals to be converted, via converters 28 and 30, tothe frequencies which the present day amplifiers can transport. In thisstage of the system, the object is to convert the signals of onepolarity up (via converter 30) and to convert the signals of secondpolarity down (via converter 28). This will render the converted signalsto be transmitted without emerging into the forbidden frequencyconversion.

From the conduits 26a and 26b, the signals are transmitted to a firstconverter or down converter 28 and a second converter or up converter30. These frequency converters, 28 and 30, respectively, convert theentered frequencies to a frequency which present day amplifies cantransport. The converters will be discussed in further detail in FIGS.3a and 3b. The utilization of two converters permit for the acceptanceof two signals or polarized transponders that are of a differentfrequency.

In the down converting means 28, the transponder is converted down to aspecified frequency. The specified frequency is the frequency that isrequired for the present day amplifiers for transportation. The newlyconverted frequencies are amplified through the amplifying means 32a. Atmeans 32a, the converted frequencies are amplified so not to createsecond harmonics. These signals are then transferred to a conventionalfour way splitter 34a.

In the up converting means 30, the transponders are converted up to aspecified frequency. The converted frequencies then are converted downvia a down converter 36. This process of converting up and then downprovides for frequencies to be converted without difficulties andavoiding the forbidden conversion area.

The convert ed signals are transferred to the four way splitter 34a inordered to combine the frequency of the amplified signal of 32a andfrequency from converter 36. To synchronized the system, the frequenciesfrom the phase lock loop (PLL) transmitter 38a are transmitted to thesplitter 34a.

From the splitter 34a, the signals are passed through an AC powerseparator 40 which routes 60 Volts power to a DC power supply of 18Volts. This will permit for the dual frequencies from the satellite dish12 to be transmitted simultaneously via a single coaxial cable 16a.Dependent upon the length of the cable, an optional conventionalamplifier 42 can be coupled thereto. Power from a power source 44 isinserted into the lines via a power inserter 46. The signals areamplified, as needed, with additional amplifiers 48. It is noted thatthe amplifiers are optional and are dependent to the distance that thehead-in frequency processor 14a is located from the head-out frequencyprocessor 18a or 18b. The power supply and power source 11 en energizesthe head-in frequency processor 14a.

From the single coaxial cable 16a, the signals are adjusted via a tap50a to permit for the appropriate decibels that are required for thehead-out processor 18a or 18b.

The head-out frequency processor used for the head-in processor 14aillustrated in FIG. 1, can include two embodiments, dependent upon theembodiment for the source in combination with the satellite receiver.

The first embodiment for the head-out frequency processor is illustratedin FIG. 2 by way of dash line 18a. As seen in this embodiment, thesimultaneously transmitted signals enter the processor via conduit 16b.The conduit 16b is coupled to a conventional four (4) way splitter 34b.A conventional phase lock loop (PLL) receiver 56a is coupled to thesplitter 34b to permit for the signals to be locked to the proper anddesired frequencies. From the splitter 34b the first frequency istransmitted to a first converter 58a in order to permit for the signalsor transponders to be converted up to a specified frequency. This upconverted signal from the first converter or up converter 58a is thentransmitted to the satellite receiver by way of a conduit 22b.

The second frequencies are transmitted to a first or up converter 52aand then are transported to a second or down converter 54a. This willpermit for the signals to be converted to the desired frequency. Thissecond or down converter is coupled to the satellite receiver 21 viaconduit 22a. The signals from down converter 54a and from up converter58a are in the original state, both frequency and polarity, whentransmitted from the satellite to the head-in processor 14a, via lines26a and 26b. The re-converted signals, frequencies and polarity in itsoriginal state, are transmitted to the satellite receiver 21 via lines22a and 22b. The satellite receiver 21 is coupled to a source 20(illustrated as a television) to provide for proper transmission of thesignals. The transmission line between the satellite receiver 21 andsource 20 is illustrated but not labeled.

Hence, it is seen that the head-in processor converted the signals todifferent frequencies to enable the transmission of two separatepolarized signals via a single co-axial cable to a head-out processor.From the head-out processor, the signals are re-converted to theiroriginal state, which was received via lines 26a and 26b. For example,with satellite systems, frequencies typically range between 950-1450MHz. If the satellite transmits a frequency of 1450 for both thehorizontal and vertical polarities, then one of the polarities, such ashorizontal, is converted down to 560 MHz via converter 28. The secondfrequency of the second polarity, such as vertical, is first convertedup to 2010 and then back down to 1070, via converters 30 and 36,respectively. Such a conversion allows for the two frequencies of twodifferent polarities, 560 MHz (horizontal) and 1070 MHz (vertical), tobe transmitted simultaneously on a single co-axial cable (16a and 16b).

As illustrated, this head-out frequency processor is the reverse processof the head-in processor. This is to provide for the signals toreconverted to its original frequencies so as to provide for thesatellite receiver 21 and source 20 to accept the signals. The singlecable 16b accepts the signals at frequencies different than that of thesource. Accordingly, the head-out processor must re-convert the signalsto the frequencies that are utilized by the source 20.

An alteration of the satellite receiver requires an alteration in thehead-out receiver processor. This alteration is illustrated in FIG. 2and is shown in outline designated as reference 18b. In this design andconfiguration, the satellite receiver utilizes only one wire and acceptsonly one type of signal, selectively, such as only left-hand circular oronly right hand circular polarized signals.

As seen, the frequencies are tapped via 50b. The tap 50b is coupled tothe head-out processor 18b via line 16b which is connected to a four (4)way splitter 34c. To provide for the signals to be locked in properfrequencies, the four way splitter is coupled to a phase lock loop (PLL)receiver 56b.

From the splitter 34c, the first signal of a first polarity istransmitted to a first or up converted 52b and then is transmitted to asecond or down converter 54b. The conversion of the signals from up todown provides the benefit of converting the frequency without any mishapor error. This method of conversion will avoid the forbidden conversionarea as well as provide for the original received frequency and polarityof the signals.

The signals of the second frequency and second polarity are transmittedto an up converter 58b which will inherently convert the signals to itsoriginal received frequency while maintaining its polarity. A polarityswitch 60 is connected to converters 52b, 54b, and 58b for coupling thehead-out processor to the satellite receiver via a single cable 22c anda joining means, which is a four way splitter 34d. The satellitereceiver 21 is connected by way of a line (illustrated, but not labeled)to a source 20. In this embodiment, the switch 60 is used to determinewhich polarity will enter into the head-out processor 18b.

In the embodiments shown above, the satellite receiver 21 and source 20are conventional components and as such, their schematics are not shownin further detail. The up and down converters used in the embodimentabove will be discussed in further detail in FIG. 3a and FIG. 3b. FIG.3a represents the schematic rendering of the down converters (28, 36,54a, and 54b) and FIG. 3b represents the schematic rendering of the upconverters (30, 52a, 52b, 58a, and 56b).

As seen in the schematic diagram of FIG. 3a, the signal enters the downconverter via line L1. The entered signal passes through a firstcapacitor C1 which is coupled to an amplifier AMP. After passing theamplifier AMP, the signal passes a second capacitor C2 before entering afirst low pass filter LPF1. This first LPF1 is coupled to a mixer whichis coupled to a second LPF2. This second LPF2 is connected to a thirdcapacitor C3 which is coupled to a second choke CH2. The mixer is alsoconnected to an oscillator OSC. The oscillator is coupled to a PPL. Thefirst capacitor C1 is also connect to a first choke CH1. Capacitors C,C1, C2, C3 are coupled to the amplifier, oscillator, phase lock lopePPL, and the second low pass filter. Resistors R are coupled to theamplifier, oscillator, first low pass filter and mixer. Chokes are alsocoupled in series with capacitors to provide for the chokes to beparallel with the amplifier AMP and the second low pass filter,respectively. As seen the chokes CH1 and CH2 (inductors) and capacitorsC are a DC bypass filter network and provide a DC path and enablespassing DC power to the antenna electronics.

The up converter is disclosed in FIG. 3b. As seen in this drawings, thesignal enters the up converter via a first line L2. The converterfurther includes an amplifier AMP that is coupled to a first low passfilter LP1. The amplifier is also coupled to an oscillator OSC. Theoscillator and the first low pass filter are connect to a mixer. Thismixer is coupled to a high pass filter HPF. The oscillator is alsoconnected with a phase lock loop receiver PLL. A second amplifier AMP2is coupled to the high pass filter HPF. A second low pass filter LPF2 iscoupled to the second amplifier. Capacitors are coupled to the firstamplifier, first lower pass filter, and a the amplifier. Resistors R arecoupled other first and second amplifiers, oscillator, first low passfilter, and mixer. Chokes are also used in this circuit. The first chokeis coupled to a capacitor which is coupled to the first amplifier. Thesecond chock is coupled to the phase lock loop.

Simplifying the head out processor described above, will provide anotherembodiment for the satellite broadcast receiving and distributionsystem. This system is illustrated in further detail in FIG. 4. Thisembodiment simplifies the above describe embodiments and also provides adevice which avoids the forbidden path. Alteration for this embodimentoccurs in the head-in equipment frequency processor 14b and the head-outfrequency processor 18c.

As with the first embodiment, a low-noise block converter (LNB) 24 willreceive the signals from the satellite 12. This LNB 24, as statedpreviously, is conventional and is used for amplifying the respectivepolarized signals (Vertical-polarized signals and Horizontal-polarizedsignals or left-hand circular and right-hand circular polarizationsignals). Hence, after signals are received, they pass the low-noiseblock converter 24, to provide for the signals to enter the head-inequipment frequency processor 14b (illustrated in FIG. 4 as dashedlines) via conduits 26a and 26b, respectively.

The head-in equipment frequency processor 14b, provides for the signalsto be converted, via converters 28 and 30, as identified for the firstembodiment. Thereby providing a system which includes frequencies thatthe present day amplifiers can transport. In this stage of the system,the object is to convert the signals of one polarity up (via converter30) and to convert the signals of second polarization down (viaconverter 28).

From the conduits 26a and 26b, the signals are transmitted to a firstconverter or down converter 28 and a second converter or up converter30. These frequency converters, 28 and 30, respectively, convert theentered frequencies to a frequency which present day amplifies cantransport. The converters have been discussed in further detail in FIGS.3a and 3b. The utilization of two converters permit for the acceptanceof two signals or polarized transponders that are of a differentfrequency.

In the down converting means 28, the transponder is converted down to aspecified frequency. The specified frequency is the frequency that isrequired for the present day amplifiers for transportation. Though notillustrated, the newly converted frequencies are amplified through theamplifying means, as illustrated in FIG. 2 via element 32a. At theamplifying means 32, the converted frequencies are amplified so not tocreate second harmonics. These signals are then transferred to aconventional two-way splitter 34c.

In the up converting means 30, the transponders are converted up to aspecified frequency. The converted signals are transferred to the twoway splitter 34c in order to combine the frequency of the amplifiedsignals. To synchronized the system, the frequencies from the phase lockloop (PLL) transmitter 38a are transmitted to the splitter 34c.

From the splitter 34c, the signals are passed through a conventionaltilt and gain 62. This will permit for the dual frequencies from thesatellite dish 12 to be transmitted simultaneously via a single coaxialcable 16a. Dependent upon the length of the cable, an optionalconventional amplifier 42 can be coupled thereto. Power from a powersource 44 is inserted into the lines via a power inserter 46. Thesignals are amplified, as needed, with additional amplifiers 48. It isnoted that the amplifiers are optional and are dependent to the distancethat the head-in frequency processor 14b is located from the head-outfrequency processor 18c. The power supply and power source 11 energizethe head-in frequency processor 14b.

From the single coaxial cable 16a, the signals are adjusted via a tap50a to permit for the appropriate decibels that are required for thehead-out processor 18c.

The head-out frequency processor used for the head-in processor 14b isillustrated in by way of dash line 18c. As seen in this embodiment, thesimultaneously transmitted signals enter the processor via conduit 16b.The conduit 16b is coupled to a conventional two (2) way splitter 34d. Aconventional phase lock loop (PLL) receiver 56a is coupled to thesplitter 34d to permit for the signals to be locked to the proper anddesired frequencies. From the splitter 34d the first frequency istransmitted to a first converter 52c in order to permit for the signalsor transponders to be converted up to a specified frequency. Theconverted signals from the first converter or up converter 52c are thentransmitted to the satellite receiver by way of a conduit 22a.

The second frequencies are transmitted to a down converter 54c. Thiswill permit for the signals to be converted to the desired frequency.This second or down converter is coupled to the satellite receiver 21via conduit 22b. The signals from down converter 54c and from upconverter 52c are in the original state, both frequency and polarity,when transmitted from the satellite to the head-in processor 14b, vialines 26a and 26b. The re-converted signals, frequencies and polarity inits original state, are transmitted to the satellite receiver 21 vialines 22a and 22b. The satellite receiver 21 is coupled to a source 20(illustrated as a television) to provide for proper transmission of thesignals. The transmission line between the satellite receiver 21 andsource 20 is illustrated but not labeled.

Hence, it is seen that the head-in processor converted the signals todifferent frequencies to enable the transmission of two separatepolarized signals via a single co-axial cable to a head-out processor.From the head-out processor, the signals are re-converted to theiroriginal state, which was received via lines 26a and 26b. The aboveidentified embodiment is ideal for long distant use, i.e. exceeding 1000feet. However, for shorter distance, i.e. less than 1000 feet, thecomponents can be simplified again to provide for a device which isideal for use in apartments or the like.

As seen in FIG. 5, the present invention includes the head-in equipmentfrequency processor 14c and the head-out frequency processor 18d.

As with the first the previous embodiments, a low-noise block converter(LNB) 24 will receive the signals from the satellite 12. This LNB 24, asstated previously, is conventional and is used for amplifying therespective polarized signals (Vertical-polarized signals andHorizontal-polarized signals or left-hand circular and right-handcircular polarization signals). Hence, after signals are received, theypass the low-noise block converter 24, to provide for the signals toenter the head-in equipment frequency processor 14c (illustrated in FIG.5 as dashed lines) via conduits 26a and 26b, respectively.

As seen, this head-in equipment frequency processor 14c is simplified.The head-in equipment frequency processor 14c, provides for signals ofone frequency to be converted, up via converter 30, as identified forthe first embodiment. Thereby providing a system which includesfrequencies that the present day amplifiers can transport. In this stageof the system, the object is to convert the signals of one polarity up(via converter 30). The signal of the second polarity is amplified viaconventional amplifier 32a.

From the conduits 26a and 26b, the signals are transmitted to a firstconverter or up converter 30 and a amplifier 32a. The down convertershave been discussed in further detail in FIG. 3a.

From the amplifier and up converter, the signals are transferred to aconventional hybrid mixer 36a. From the mixer, the signals pass adiplexer 64. Signifies exit the diplexer via a single co-axial cable16a.

From the single coaxial cable 16a, the signals can be adjusted via a tap(illustrated, but not labeled) to permit for the appropriate decibelsthat are required for the head-out processor 18d.

The head-out frequency processor used for the head-in processor 14c isillustrated in by way of dash line 18d. As seen in this embodiment, thesimultaneously transmitted signals enter the processor via conduit 16b.The conduit 16b is coupled to a conventional mixer 36b. From the mixer36b the first frequency is transmitted to an amplifier 32b and thesecond frequency of a different polarity is transferred to a downconverter 52d for converting the frequency to its original state.

The re-converted signals, frequencies and polarity in its originalstate, is transmitted to the satellite receiver 21 via lines 22a and22b. The satellite receiver 21 is coupled to a source 20 (illustrated asa television) to provide for proper transmission of the signals. Thetransmission line between the satellite receiver 21 and source 20 isillustrated but not labeled.

Hence, it is seen that the head-in processor converted the signals todifferent frequency to enable the transmission of two separate polarizedsignals via a single co-axial cable to a head-out processor. From thehead-out processor, the signals are re-converted to their originalstate, which was received via lines 26a and 26b. The above

The satellite system of the present invention will permit for twosignals of different frequency and polarities to travel simultaneouslyvia a single coaxial cable. The use of this will provide for a satellitesystem that is versatile, economical and compact. The usage of thesingle cable permits for a system that can accept satellite broadcastingin places that were previously render impossible. These places includemid/high-rise office buildings, condominiums, hospitals, schools, etc.The unique design and configuration enables the signals to betransmitted via the existing wiring of the buildings. The onlyrenovations that may need to be done is the upgrading of the existingamplifiers.

While the invention has been particularly shown and described withreference to an embodiment thereof, it will be understood by thoseskilled in the art that various changes in form and detail may be madewithout departing from the spirit and scope of the invention.

We claim:
 1. A satellite broadcasting system comprising:a satellite dishcoupled to a low-noise block converter;said low-noise block converter iscoupled to a first means of converting vertical polarization signals andhorizontal polarization signals or left-hand circular polarizationsignals and right-hand circular polarization signals from a satelliteand transmitting simultaneously via a single coaxial cable for enablingtwo different frequencies and polarities to be transmittedsimultaneously via said single coaxial cable; a second means is coupledto said first means;said second means converts said verticalpolarization signals and said horizontal polarization signals or saidleft-hand circular polarization signals and said right-hand circularpolarization signals from said first means to its original receivedfrequency and polarity from said satellite dish; a satellite receiver iscoupled to said second means; anda source is coupled to said satellitereceiver.
 2. A satellite system as in claim 1 wherein a power source iscould to said first means and said power source powers said first means.3. A satellite system as in claim 1 wherein said second means providesfor said signals to be converted separately and independently to saidsatellite receiver by a transmitting means.
 4. A satellite system as inclaim 1 wherein said second means provides for a transmitting means forsaid signals to be selectively converted to said satellite receiver viaa first cable coupled to said second means.
 5. A satellite system as inclaim 4 wherein said transmitting means further includes a polarityswitch for permitting said signals to be selectively converted to saidsatellite receiver.
 6. A satellite system as in claim 1 wherein saidfirst means includes a first converting system for converting saidsignals of a first direction to a desired first frequency andpolarization and a second converting system for converting said signalsof a second direction to a desired second frequency and polarization.